Work Performed Responded to service call for a faulty thermostat. Advised client on replacement pricing for a new thermostat. Discussed maintenance options; client joined the Comfort Club. Completed full maintenance on both furnace and AC systems. Results Furnace: Payne furnace (installed ~2013) operating normally. AC: Payne installed same as furnace. Operating well; no issues detected. Both systems are functioning efficiently at this time. Maintenance Checklist Checked burners and heat exchanger. Inspected and tested all safety controls. Checked air filter. Inspected thermostat operation. Inspected condenser coil and outdoor unit. Checked refrigerant levels and airflow. Checked and tested blower operation and fan speeds. Verified proper system operation in both heating and cooling modes.